• Autonomous collision-free scheduling for LoRa-based industrial Internet of Things 

  Zorbas, Dimitrios; O'Flynn, Brendan (Institute of Electrical and Electronics Engineers (IEEE), 2019-06)

  LoRa-based transmissions suffer from extensive collisions even for low node numbers due to unregulated access to the medium. In order to tackle this problem, we propose a collision-free time-slotted scheduling approach ...
• Band structure engineering of type-II GaSb/GaAs quantum rings for intermediate band solar cells 

  Arkani, Reza; Broderick, Christopher A.; O'Reilly, Eoin P. (Institute of Electrical and Electronics Engineers (IEEE), 2019-07)

  Type-II quantum-confined heterostructures constitute a promising approach to realise highly efficient intermediate band solar cells (IBSCs), due to their long radiative lifetimes and the flexibility with which their ...
• Experimental investigation of non-line-of-sight channels in an intra-body network at 2.38 GHz 

  El-Saboni, Yomna; Zelenchuk, Dmitry E.; Conway, Gareth A.; Scanlon, William G. (Institute of Electrical and Electronics Engineers (IEEE), 2019-03)

  The characteristics of the intra-body propagation channel between implanted antennas are highly application dependent. Measurements of the forward path gain between identical implant antennas within two multi-layered tissue ...
• Semi-analytical method for the extraction of the system parameters in application to kinetic energy harvesters 

  Sokolov, Andrii; Olszewski, Oskar Z.; Houlihan, Ruth; Kennedy, Michael Peter; Blokhina, Elena (Institute of Electrical and Electronics Engineers (IEEE), 2019-05)

  In this paper, we propose a technique to extract system parameters of nonlinear MEMS devices using a combination of model reduction and nonlinear optimization. The model is tested on a MEMS energy harvesting device employing ...
• Optimal placement of drones for fast sensor energy replenishment using wireless power transfer 

  Caillouet, Christelle; Razafindralambo, Tahiry; Zorbas, Dimitrios (Institute of Electrical and Electronics Engineers (IEEE), 2019-04)

  Lifetime is the main issue of wireless sensors networks. Since the nodes are often placed in inaccessible places, the replacement of their battery is not an easy task. Moreover, the node maintenance is a costly and time ...

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